Kowledge Gap is a tool to classify your notes automatically, find new connections between existing ideas and see a mind-map of everything you've learnt. It was made as part of the 2024 UQCS Hackathon, and what you're seeing is a live demo with Isaac Beh's notes. You can find more about Knowledge Gap here.
Some things to try:
Hover over nodes to see the concepts they represent
See automatically generated connections between concepts via the edges of the graph
Move nodes around by dragging
Move the graph around by dragging with the middle mouse button
Create new edges or delete exising ones by clicking between nodes
Change the forces (bottom left) and see how the graph responds